Extension table



Aug.v 19, 1930. R. E. BELLONBY EXTENSION TABLE y Filed March 26, 1927 v2 Sheets-Sheet 1 Y JNVENTOR. 641m@ 7 Y 4% R. E. Br-:LLoNBY EXTENSIONTABLE Aug. 19, i930.

Filed March 26, 1927 `2 Sheets-Sheet 2 INVENTOR.

A TTORNE Y.

Patented Aug. 19, 1930 .RAY E. BELLONBY, or CINCINNATI, .Y ori-ipo'- YEXTENsIoN TABLE l Appiiqation fiiefiMaLien 2e, 192.7.; seriai isn).`178,729.4- i

My'invention relates to extension tables such as dining room s tables inwhich addi-l tional table boards may be added by opening .up the sidesof the table rand inserting the desired v number of additional boards.

' It is the object of my invention to provide `mechanism in combinationWith a table which vwith. finechanical extending means. further my object to construct a table so that it lvvill readily'accommodate itself toa mei chanica'l extending device.

; lsion table in open posi `may be'readily actuated by the Woman in thehomejwhich Will avoid the necessity of pull-- ing iirst oiione end ofthe table and then on thev other and incurring the physical strainincidentt'o opening yup a table not proiided t is 'The above and therob]ects in connection With `novel means for guiding the sliding membersIof theftable," I accomplish by that certain arrangement and combinationof parts of Which'l have illustrated a preferred embodiment. Y

Referring to the drarvings:

Figure 1 is a'perspective kvieW of an exten- 'tion so thatthe actuatingmechanism may be seen'.

Figure 2 is a vertical .sectionV taken along the lines 2-2 in Figure l,looking in the ydi-V 'rectionr of the arroWs.

Figure 2-is a vertic l section takenV along fthe lines 21-2'el in Figurelooking'in the direction of .the arrows.

n the lines 4f-'4 in Figurel.

, Figure 3 is a vertical-section taken along ,tjlielines 3-3 in Figurel'.y o

v"Figure 4 is a vertical, section'taken along `Figure 5 shows adiagrammatic side ele-k vationyof another modiiication of the type -ofextendinginechanism shown lin the other figures. .l V The end pieces ofthe table top are indicated at l, 2, having the downwardly extendingside bars 3, 4. The table top portions 1 and 2'are supported bylengthwise extending rails such as are indicated at`5-5, and theY tabletop ends consisting of the parts l, 2, kare slidably mounted on therails being held thereto by the extending mechanism which will behereinafter described. Legs 6-#6 are mounted on cross braces 7-7WidthWays acro'sslfunder the rails 3-5.', The, legs may also be mounteddirectly on 'the cross braces 5-5.` Supports 71` armay also be extendedWidthWise of the table at the ends kof the rails 5 5 for increasing'therigidityofthe assembly and"supporting the pulleys. Thesupportingstructurey for the table topfin the illustration shown is, therefore,immovable.

The top partsk are slidable' tofexpose such an open'k areabetween themthat a desired Anumber of boards may be-in'serted. For me-v chanicallyextending the table top V.I have provided mechanism asfollovvs:Extending across'tlie table laterally, preferably vat the vcenterthereof, :["have mounted in journals V8.--8the spindle shaft 9 Whichpreferably has acent'ral drum portion 10." Ropes or cables lI-ll may be"extended" from fasteners `lla-11a `,near e the inner edges yof theparts 1 and 2 and then lthrough pulleys l2-12a, '1S-13a mountedon thesupports 71- a respectively, after y which they are Wrapped around' thedrum 101:0'l which they may be secured. |The specilicjarrangementhereinafter described is'not"essential, itbeing my purposefin theparticular constructionshown to provide a drum the turning of which Willcause the ends of thetable top to ymove equally to and fromthe vcenterofthe table.

Considering iirst Figure 2,a cable 11 visfattachedto a fastener 11asecured close `to the n inner edge of the part l, The cable is thenpassed to` the'left 'aroundthe pulley l2, then with one ormore Wrapsaround 4the drum 10 'passing from leftto right clockwise around the"drum l0. v*The cable is then passed under .and arnindy the pulley 121L'and back to the fastener, froirivvhich thecable Was originallyextended.'I

,'Considerinfnovv,V Figure 2a, a, cable is atv 4ktached toa fastenerz11,a` close to the inner edge'of the art 2, then lto theleft. aroundthe Ipulleyglv. fterubeing passed around pulley 13 the cable' ispassedaround the drum l()l l counter-clockwise fromrleftfto right. Next thecable is passed underand around the pulley 13 and then backv to theoriginalfastener.

' The'shaft 9 inayhave a portion such as is indicated at 14`having a pinextending radially therefrom which is adapted to be' engaged Cla' toprevent lateral movement of by a detachable turning handle 15 which Iordinarily provide for actuating the extending mechanism. It will beapparent that the shaft 9 may be shaped to engage a handle on either orboth sides as shown in Figures 1 and 4. The table end portions 1 and 2have secured to their lower surfaces track portions such as areindicated at 16'-17 respectively. The track portions may be keptinalignment on the rails 5 5 by means of screws 18 secured in the centralzone of the upper surface of the rails 5-5.` The screws have wide headswhich act as guides for the tracks which being secured to the Vtable topends slide with the extension of the table top ends. In `order toprovide bearings for the tracks I have furtherfound it advisable toinsert rollers 19 within sockets on the sides and tops of the rails 5 5.

The extending mechanism which I have disclosed may be the subject ofmany mechanical modifications. For example, in Figure 5 I have shown adifferent arrangement in which the central spindle 9 has a pinion 19aand each one of the table ends 1 and 2 have racks 20 attached theretowhich engage the pinion, one above the center thereof and one below. Itwill be obvious that when the spindle is turned the racks will cause thel. movement of the table ends apart or together in accordance with'thedirection in which the spindle is turned. In combination with the rackand pinion mechanism the track and guide arrangement illustrated inFigures 1,

g; 3, and l will preferably be used. I find the use of L-shaped tracksas guiding means are thus provided which will tend to prevent thesliding mechanism from getting out of order. Y Y f Having thus describedmy invention, what I claim as new and` desire to secure by LettersPatent, is

1. In an extension table, a base, top boards slidable over said basetoward and away from j, Yeach other, .parallel rails fixed to said baseand extending in the direction of movement of said top boards, guidesupon said top boards, said guides` comprising an angle member one faceof which rides upon the top of said Arail and the other face of whicheX- tends along the side of said rail, said guides arranged in pairswhereby the top faces of two guides will overlie a single rail, the sidefaces thereof lying on either side of said rail said top boards, androllers on thetop of said rails to forma bearing for said top faces ofthe guides, and rollers on the sides of said rails to provide a bearingfor the side faces of said 'r guides. f 1

2. In an extension table,.a base, top boards slidable over said basetoward and away from each other, parallel rails fixed to said base andextending in the direction of movement of said top boards, a guide uponeach of said top boards for each of said rails, said guides comprisingan angle member one face of which rides upon the top of said rail andthe other face of which extends along the side of said rail, said guidesarranged in pairs whereby the top faces of two guides will overlie asingle rail, the side faces thereof lying on either side of said rail toprevent lateral movement of said top boards, and rollers on the top ofsaid rails to form a bearing for said top faces of the guides, androllers on the sides of said rails to provide a bearing for the sideVfaces of said guides.

8. In an extension table, a base, top boards slidable over said basetoward and away from each other, parallel rails fixed to said base andextending in the direction of movement of said top boards, a guide uponeach of said top boards for each of said rails, said guides comprisingan angle member one face of which rides upon the top of said rail andthe other face of which extends along the side of said rail, said guidesarranged in pairs whereby the top faces of two guides will overlie asingle rail, the side faces thereof lying on either side of said rail toprevent lateral movement of said top boards, and rollers on the top ofsaid rails to form a bearing for said top faces of the guides, androllers on the sides of said rails to provide a bearing for the sidefaces of said guides, means comprising a shaft fixed to said base andbearing a drum, pulleys upon said'base to endless cable membersoppositely wound about said drum and passing over said pulleys, each ofsaid cables attached to and controlling the movement of one of said topboards.

4. In an extension table, a base, and topboards slidable over said basetoward and away from each other, and mechanical means for controllingthe movements of said top board comprising a shaft rotatably attached tosaid base and bearing a drum, an endless cable for oachof said topboards and attached thereto, each of said cables oppositely wound aroundsaid drum and passing over pulleys at the ends of said base whereby whensaid shaftis rotated in one direction said top boards will be movedtoward each other, and when said shaft is moved in the other directionsaid. top'boards will be moved away from each other, and means forrotating said shaft. comprising Va detachable han dle.

RAY E. BELLONBY.

